baber/WOPTO huggingface dataset:
Patent GB-346406-A (GB)
Title: Process for the production of cinematographic effects in colour and means therefor
IPC: G02B27/14
Filed: 1930-01-09
Abstract: 346,406. Colour kinematography. DAPONTE, D., 39, Coventry Street, London. Jan. 9, 1930, No. 11417/29. [Class 97 (i).] To permit the use of large aperture lenses having a short focal length in the production of complementary colour pictures arranged side by side lengthwise of an ordinary kinematograph film a light beam-dividing system is provided in which the beams are separated to such an extent or at such an angle as will enable such lenses to be used, one or both of the beams being subsequently redirected by a reflecting surface into the required position on the film. Several examples of these systems are described in the Specification, of which those shown in Fig. 3, and Figs. 5, 6 and 7 are typical. The incident light beam 1, Fig. 3, is divided at the partially reflecting surface d, the part 2 passing through the prisms 3, 5 and being reflected by the surface 5a to the lens 6 by which the image 9 is formed. The direct beam is reflected at the surface 4a of the prism 4 to the lens 7 by which the image 10 is formed after reflection of the rays by the reflector 8. This arrangement enables the positions of the lenses to be such that large diameter lenses may be used. The length of the ray paths and the refractive indices of the prisms are so proportioned that the paths of the divided beam are optically equal before reaching the lenses. The ray paths of the system shown in Figs. 5, 6 and 7 are substantially the same as those of Fig. 3 but reflections take place at right-angles instead of obtuse angles as in that Figure. Specification 346,454 is referred to.
Patent GB-1571072-A (GB)
Title: Cigarette packeting machine
IPC: B65B19/24
Filed: 1977-03-17
Abstract: The packaging machine has a plurality of stations for folding the wrapping material, each station comprising a compartmented wheel (15), fixed folding guides and movable folding strips (40, 41, 47, 48) and a drive mechanism (1-14). The device enables the compartmented wheel which is normally used in machines for packaging soft packs, to be used in a machine of this type since it inverts the arrangement for folding the top flaps of the inner wrapper. For this purpose, the movable strips (40, 41, 47 and 48) are arranged in pairs (40, 47 and 41, 48) on opposite sides of the wheel (15) and are mounted in pairs (40, 41 and 47, 48) on a shaft (42 and 49) which oscillates by means of a lever mechanism and a cam (10, 11). The lever mechanism between the shaft (42) of the movable folding strips (40 and 41) and the cam (10) comprises a component (44) which oscillates on a fixed point (45), so that the strips (40, 41) are first made to turn in a direction opposite to that of the movement of the wheel (15), then stop and wait, and then turn in a direction opposite to the first, then again in the first direction and finally in the opposite direction. <IMAGE>
Patent GB-582776-A (GB)
Title: Improvements relating to means for rolling metal ingots or the like
IPC: B21B1/02
Filed: 1944-06-16
Abstract: 582,776. Rolling. GIBBONS BROS., Ltd., and JONES, J. H. June 16, 1944, No. 11501. Drawings to Specification. [Class 83 (iv)] To avoid delay in feeding an ingot from a soaking pit &c. to a rolling-mill, a boosting furnace is located close to the mill and to one side of the live feed rollers. During the rolling of one ingot a second ingot is transferred from the pit to the boosting furnace to be available immediately when required. The furnace, has a door adjacent the live rollers and a mechanical handling device situated on the opposite side of the rollers has arms for lifting the ingot and then moving it laterally into or out of the furnace. The live rollers may be stopped during the transfer movement.
Patent GB-433075-A (GB)
Title: Combined wash-hand basin and electrically heated water tank
IPC: E03C1/044
Filed: 1934-04-17
Abstract: 433,075. Supply and delivery arrangements for hot-water boilers. LOW & SONS, Ltd., A., and LOW, D. W., Merkland Works, Partick, Glasgow. April 17, 1934, No. 11511. [Class 64 (i)] A wash-hand basin 1 combined with an electrically heated water tank 7 beneath it has a water delivery nozzle 3 and a control handle 2 on the basin operating a three-way water valve 4 connected to a cold supply pipe 6, through a pipe 8 to the tank 7 and through a byepass pipe 10 to the nozzle 3, so that cold water may be delivered through the pipe 10 to the nozzle 3 or through the pipe 8 into the tank 7 to displace hot water through a pipe 9 to the nozzle 3, or so that a mixture of hot and cold is delivered to the nozzle 3.
Patent GB-276710-A (GB)
Title: Improvements relating to matrices or moulds for the production of electrotype printing plates or surfaces
IPC: B41C3/08
Filed: 1926-05-01
Abstract: 276,710. Corey, J. A. May 1, 1926. Printers' appatatus. - Substantially identical matrices for the manufacture of electrotype printing plates or surfaces for postage stamps &c. are made by embossing soft metal such as lead in such a manner that substantially the same pressure is applied upon the respective blanks, elastic layers of substantially the same thickness being interposed through which the pressure is transmitted. A series of matrices so produced are then set in position so that their lateral edges are in contact and are pressed through the intermediary of an elastic layer on a sheet of uniform thickness with a uniform layer of adhesive so as to form a composite matrix. A lead plate planed &c. to standard gauge, e.g. 18 B.W.G., preferably with a tin top surface, is placed on a die f mounted on a support e of the same size, which is surrounded by a tubular bevelled cutter g capable of vertical movement by pins and inclined slots in a forked member h traversed horizontally in guides m, l by a nut rotated by a hand wheel k. A series of sheets of paper, which are discarded after use, are then placed over the blank and a smooth presser plate n is forced down by a screw a to emboss the blank. The downward motion of the presser is limited by a stop p or by a stop set in the line of movement of the screw and acting together with a spring &c. buffer. A dial and pointer may also be used. The cutter is first placed slightly above the top surface of the die so that subsequent movement of the presser effects the embossing under conditions in which the spread of metal under compression is prevented. The cutter is then raised to sever the blank to required dimensions. In a modification the cutter may be placed so that it does not project beyond the die, a second punch being placed on the upper surface of the blank and surmounted by elastic layers. The punch may either have its edges in alignment with the lower cutter or may be arranged so as to cooperate therewith to effect a shear cut.
Patent GB-964572-A (GB)
Title: Improvements in signal processing
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: H04N5/95
Filed: 1960-04-01
Abstract: 964,572. Automatic phase control systems. RANK-BUSH MURPHY Ltd. March 30, 1961 [April 1, 1960], No. 11554/60. Drawings to Specification. Heading H3A. In magnetic tape-recording of television signals a plurality of cycles of a reference frequency is injected into recurrent blank intervals of the signals as from an oscillator whose oscillations are applied through a gate circuit into an adding circuit during the blanking intervals when the gate is opened by line sync. pulses in the signals. Alternatively, the oscillations may be produced by shock exciting a passive tuned circuit energized from the line sync. pulses. In reproducing the signals (from a tape controlled in mean speed from a separate parallel recording track) signal frequency variations resulting from variations about the mean speed are compensated by comparing the reference frequency bursts with oscillations of equal standard frequency in a phase detector whose output, in accordance with any phase error, varies the delay and hence phase shift produced by a variable delay ladder network in the path of the reproduced signals. The network may comprise potential variable shunt capacitors or current variable series inductors each hybrid connected with the control current source by a pair of magnetic cores preventing relative interaction.
Patent GB-325740-A (GB)
Title: Improved method of and machine for making fibre board from pulp
IPC: D21F9/00
Filed: 1929-04-15
Abstract: 325,740. Downingtown Manufacturing Co. Dec. 24, 1928, [Convention date]. Boards; Fourdrinier papermachines.-In the manufacture of thick pulp board, the pulp is delivered by means of a pressure head box 8, having overflow gates 12 to vary the pressure, on to a straight wire 6 and is carried thereby over table rolls 4 and beneath plate members 14, 15, and rolls 19 to press rolls 23, 24 and 21, 5. An upper wire 18 is used and passes into contact with the pulp between the plate members 14, 15. These plate members are mounted on a frame hinged at 17 and hinged to this frame at 25 are bars 20 on which the rolls 19 are mounted. The plate members 14, 15 and the rolls 19 are yieldingly pressed on to the pulp by means of the weight 32 and the weighted levers 35 respectively.
Patent GB-844075-A (GB)
Title: Improvements in or relating to transistor oscillators
IPC: H02M3/338
Filed: 1957-04-10
Abstract: 844,075. Transistor oscillator circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 10, 1957 [April 13, 1956], No. 11741/57. Class 40(6). [Also in Group XXXV] A transistor oscillator of the type comprising two push-pull connected transistors 1, 2 having regenerative feed-back between collector and base-emitter circuits provided by a transformer 3, 4, has one terminal of the D.C. supply coupled to one of the base electrodes through a capacitor 8 in order to provide a current pulse when the circuit is switched on to start oscillation. In the circuit shown the capacitor is shorted through a resistor 23 when the starting switch is in the "off" position and the secondary winding 17 of the transformer is coupled to a full wave rectifier circuit to provide a D.C. supply.
Patent GB-1102761-A (GB)
Title: Selective signal receiver with tuned protective circuit
Inventor: SAFAR ZOLTAN
IPC: H04Q1/46
Filed: 1965-03-19
Abstract: 1,102,761. Voice immunity circuits. TELEFONGYAR. 19 March, 1965, No. 11797/65. Heading H4R. A voice-frequency signalling receiver equipped with speech immunity circuits comprises, Fig. 2, an amplifier, e.g. transistor 11, which has a frequency dependent circuit in its input such that the signalling frequency is discriminated against, and frequencies predominant in speech are accentuated. In operation, if speech signals are present the amplifier is blocked, due to the rectifying action of the emitter base diode and the R-C circuit 12, 13, and only if the signalling frequency only is present is the amplifier unblocked, and the signalling frequency amplified by the transistor 11 which has a circuit tuned to the signalling frequency in its collector circuit. The amplified signalling frequency is detected and the resulting D.C. amplified and applied to output terminal 17. A prior art circuit, Fig. 1 (not shown), is also described in which a parallel tuned circuit and a series tuned circuit supply energization for respective windings of a polarized relay. The relay has a further winding biased to provide assistance to the winding fed by the series tuned circuit so that only if the parallel tuned circuit is energized alone by the reception of the signalling frequency is the relay operated.
Patent GB-181560-A (GB)
Title: Improvements in effecting the separation, or grading, of powdered materials and the treatment thereof by air, or other gases, or vapours, and apparatus to be employed therein
IPC: B07B7/08
Filed: 1921-04-25
Abstract: 181,560. Reynolds, W. H., Dickin, W. W., and Kenyon, G. April 25, 1921. Pneumatic separating. - The separation or grading of powdered materials is effected by causing them to fall through the upper zone of a vertical chamber and then through a lower zone through which air or other gas or vapour is withdrawn from the central part of the chamber so that the lighter particles are removed from the heavier particles. The material is fed to the vertical chamber A by means of a conveyer b and a dispersing arrangement consisting of a sieve d and rotating arms e. A tube F projects into and is concentric with the chamber A and has a number of longitudinal slits f<2> at about the mid-depth of the chamber, the end of the tube being closed. By means of a fan f a current of air is drawn through the slits f<2> and air enters the chamber A by means of a mouthpiece a<3> at the bottom and regulable air inlets a at the sides. This current of air carries the lighter particles up the tube F into depositing chambers which may consist of cyclone 'separators G and a final depositing chamber H. The heavier particles fall to the bottom of the chamber A and are carried away by a conveyer. By adjusting- the air current by means of the inlets a the fineness of the final product can be varied and by the use of a number of tubes F verticallv below one another in the chamber A, and adjusting the air currents as necessary, powders of different grade may be obtained. If a vapour or gas other than air is used, it is admitted at i, Fig. 4, to a jacket and thence into the chamber A through the openings a<4> which may be adjusted by shutters. Where the material to betreated has a tendency to cling together, revolving blades k, Fig. 5. may be fitted below the sieve d to disintegrate the powder. If the material contains large particles the sieve may be omitted and the arrangement shown in Figs. 3 and 4 may be used. This comprises a rotating disc m or impeller q, on to which the material is fed, and which throws the large particles into shoots l and allows the lighter particles to fall into the chamber. In the arrangement shown in Fig. 6, very light particles are separated from the material by a transverse current of air entering at s which carries them into a discharge shoot l.
Patent GB-1106976-A (GB)
Title: Improvements in or relating to moving band filters for air or other gases
Inventor: FLOYD FREDERICK
IPC: B01D46/18
Filed: 1964-03-20
Abstract: 1,106,976. Travelling-band gas filter. OZONAIR ENGINEERING CO. Ltd. 22 March, 1965. [20 March, 1964], No. 11942/64. Heading B1T. In an air filter in which a web of filter Material is fed from a apply to a contaminated web holder cross a gas duct and moved as successive portions of web become contaminated, the unsed portion of the web is stored in a folded condition in a tray 18. Tray 18 is located behind an access door 22 at the top of the housing 10, and web is fed out of the tray round curyed guide surface 20 and subsequently over staggered rollers (Fig. 1, not shown) to a take-up device (17). A roller 25 bears on the folded web and lever 23 causes a micro-switch 27 to close operating a warning lamp when the tray 18 is nearly empty. The tray can then be withdrawn and the leading end of a new web joined to the old web prior to inserting the new web loaded on another tray. Guides 11 seal the web edges to housing 10.
Patent GB-898811-A (GB)
Title: Process of grain-refining molybdenum or tungsten
IPC: C22C27/04
Filed: 1961-04-04
Abstract: Fine-grained Mo or W is produced by adding 0,01-0,3% B to the metal, vacuum-melting the mixture and allowing it to solidify. The B may be added as crystalline or amorphous boron, boron carbide or a boride of a refractory metal.
Patent GB-1114805-A (GB)
Title: Power transmission systems for motor vehicles
Inventor: STOTT THOMAS CHARLES FELIX
IPC: F16H3/089
Filed: 1966-03-18
Abstract: 1,114,805. Transmission arrangement. VAUXHALL MOTORS Ltd. 9 March, 1967 [18 March, 1966; 11 Nov., 1966], Nos. 12174/66 and 50709/66. Heading B7H. [Also in Divisions F1 and F2] A motor vehicle transmission arrangement comprises an engine (not shown), located adjacent a final drive unit 10 for driving a pair of road wheels and change-speed gearing 18 located between a clutch 12 driven by the engine and the final drive unit, the axes of the main and layshafts 16 and 24 of the gearing being convergent in a direction away from the clutch, and the gearing driving the unit 10 directly or through an interaxle differential 42 via a first output drive-shaft 50. A second output drive-shaft 52 may drive a second pair of road wheels through a second final drive unit. All the components of the transmission are in a common casing 36. The gearing 18 is of the constant-mesh type with double-ended synchromesh or dog-tooth clutches 26 and an idler gear 28 of a reverse gear train. In an alternative embodiment the second final drive unit may be on the side of the gearing 18 remote from the first final drive unit and driven by the second final drive-shaft which passes through a hollow gearing layshaft. Alternatively, the first final drive unit may be located in space between the gearing 18 and the interaxle differential.
Patent GB-595698-A (GB)
Title: Frequency modulation of electric oscillations
IPC: H03C3/14
Filed: 1945-05-15
Abstract: 595,698. Frequency modulation; valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 15, 1945, No. 12230. Convention date, May 16, 1944. [Class 40 (v)] An angular-velocity modulated oscillator comprises a valve, the control grid of which is connected to a point in the tuned anode circuit, through a feedback path including a reactance of equal value to the grid /cathode reactance of the valve, and means for varying the current through the valve, and hence the relative phases of the grid and anode voltages in accordance with control voltages, to produce a frequency modulated output. The anode of valve V1, Fig. 1, is connected to a tuned circuit- L1, C1 and the grid is connected to a tap on coil L1 through an inductance L and condenser C. The inductance L has an equal and opposite value of reactance to that of the grid/cathode capacity CG of the valve V1. A biassing .resistance R is connected to the junction of C, L and modulating potentials from source A are applied to the second grid of V1, thus varying the effective resistance of the valve and the frequency of oscillation. The inductance L may be replaced by a condenser 24 of equal reactance to the grid/cathode capacity of valve VI. In this case, the biassing resistance R is connected directly to the grid. In a modification (Fig. 4, not shown), the signal source A is replaced by a keyed source of fixed biassing potential for frequency-shift signalling. In another modification, Fig. 5, the grid of valve V1 is connected to the tank circuit L1, C1 by a feedback path which includes a bandpass crystal filter. X. A neutralizing condenser N is connected between coil L and a symmetrical point on the tank circuit. Valves V2, V3 form a trigger circuit to apply keying potentials to the screen and control grid of oscillator V1 from potentiometers P1, P2 respectively. The anodes of V2, V3 are connected through potentiometers P1, P2 to bias sources S1, S2. Keying potentials applied to the grid of V2 front source A render it conductive, cutting off V3, and applying differential biasses to the screen and grid of V1. Valve V3 may be biassed to cut-off in the absence of marking or spacing signals from A by a potential from source S4. The neutralizing condenser N may be replaced by a non-oscillatory crystal similar to the crystal X. In further modifications (Figs. 2 and 3, not shown), the signal voltages are applied to the screen and grid of the oscillator valve in antiphase, or to the screen and grid in phase agreement and in antiphase to the anode in order to reduce amplitude modulation.
Patent GB-477827-A (GB)
Title: Improved means for detecting electrically the presence of gas in mines and other places
IPC: G01N21/71
Filed: 1936-04-30
Abstract: 477,827. Electromagnetic switches. OLDHAM & SON, Ltd., and HOLT, jun., H. April 30, 1936, No. 12309. [Class 38 (v)] [Also in Groups XL, XI, and XXV] In a miner's lamp, in which photo-electric apparatus for detecting the presence of gas is incorporated, there is employed a relay consisting of a moving-coil ammeter, the coil of which is in series with a lightsensitive cell adapted to be affected by light from an incandescible filament. A resilient contact-arm 139, is fixed on the spindle of the coil and extends on both sides thereof so as to coact with fixed contacts 147, 149. The arm 139 may be adjusted relatively to the said contacts by means of an arm 140 fixed on a spindle 136 which is aligned with the coil-carrying spindle and is connected thereto by a light coiled spring. A disc 137, marked with graduations, adjacent to an indicator 133, which indicate percentages of gas to be detected is loosely mounted on 136, but is adapted to be clamped thereto by a nut 136<1>. A fixed mark 135 and one end of the contact-arm 139 are visible through a glazed opening. In use, with the filament glowing and no gas present, the arm 139 is turned by means of the arm 140 until it is opposite the mark 135. The disc 137 is then clamped with the zero graduation 1331 coinciding with the indicator 133, whereupon the arm 140 is turned until the graduation corresponding to a predetermined percentage of gas to be detected is brought opposite to the indicator 133. This adjusts the distance through which the arm 139 must travel under the influence of current generated by the cell passing through the coil, before contact is made at 147. When this occurs, the coil is connected to a battery through a limiting resistance, and the increased current causes further slight rotation of the coil, so that the second end of the arm 139 then contacts with 149. This closes a circuit through warning lamps. A reversing-switch operated by a push-button, enables the current through the ammeter coil to be reversed, so that if the lamps light up they may be extinguished by pressure on the button and should relight when the switch contacts are released if the apparatus is working properly.
Patent GB-975569-A (GB)
Title: Improvements in or relating to combustion-type furnaces and to methods of melting materials in such furnaces
IPC: F27B19/02
Filed: 1961-04-06
Abstract: 975,569. Continuous melting furnaces. COMPAGNIE GENERALE DES CONDUITS D'- EAU S.A. April 6, 1961 [April 8, 1960], No. 12319/61. Heading F4B. A continuous melting furnace for metals &c., comprises a vertical shaft with a flue, through which the furnace is charged, a horizontal chamber connected to the base of the vertical shaft at one end, and to a combustion chamber with at least one burner, at the other, in which there is a porous bed to retain the charge in the vertical shaft, and retaining means for the porous bed which allows the passage of ascending flue gases and descending melting metal. The embodiment of Fig. 1 has the horizontal chamber 3 with a floor sloping from the base of the vertical shaft down to a taphole 16 at the combustion chamber end 6. Above and around the porous bed 11 are detachable refractory linings 19, 20 and an air- or water-jacket 22. The jacket is connected by a conduit 25 to an oil or pulverized coal burner 7. The charge 12 rests on the porous bed which may comprise a substantially inert material such as cast corundum, silicon carbide, magnesia or lime, or a non-metallic reactive material such as coke, or a high-melting point metallic material such as cast iron, steel or alloys which nevertheless eventually melts; or it may comprise a mixture of materials belonging to the above categories. The retaining means may comprise a grate 10 which may be water-cooled or be made from crossed pairs of grates, or in the instance of the porous bed being formed of large refractory blocks, Figs. 3, 4 (not shown), it may comprise a single water-cooled tube or a supporting pillar. The retaining means may also comprise a vertical wall dividing the shaft from the horizontal chamber, Figs. 5, 6 (not shown), provided with passages at the top and bottom. In the embodiment of Fig. 6 (not shown), the retaining wall dips into the molten pool, and hence prevents the slag from passing into the horizontal chamber.